We present accurate integrated-light photometry in Johnson/Cousins V , R , and I for a sample of 28 globular clusters in the Magellanic Clouds .
The majority of the clusters in our sample have reliable age and metallicity estimates available in the literature .
The sample encompasses ages between 50 Myr and 7 Gyr , and metallicities ( [ Fe/H ] ) between -1.5 and 0.0 dex .
The sample is dominated by clusters of ages between roughly 0.5 and 2 Gyr , an age range during which the bolometric luminosity of simple stellar populations is dominated by evolved red giant branch stars and thermally pulsing asymptotic giant branch ( TP-AGB ) stars whose theoretical colours are rather uncertain .
The VRI colours presented in this paper have been used to calibrate stellar population synthesis model predictions .